MAINTENANCE AND TROUBLESHOOTING
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Ⅳ
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§5.2 Troubleshooting
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Before arc welding machines are dispatched from the factory, they have already been
debugged accurately. So forbid anyone who is not authorized to change the equipment!
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Maintenance course must be operated carefully. If any wire becomes flexible or is
misplaced, it maybe potential danger to user!
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Only professional maintenance personal should maintain the machine!
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Guarantee to shut OFF
machine’s power before turn on the outline of the equipment!
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If there is any problem and has no the authorized professional maintenance personal of
our company, please contact our local agent or the branch company!
If there are some simple troubles of MIG SERIES welding machine, you can consult the
following
Chart:
NO.
Troubles
Reasons
Solution
1
Close the breaker, but the
power light isn’t on
Breaker damaged
Change it
Fuse damaged
Change it
Power damaged
Change it
2
After welding machine is
over-heat, the fan doesn’t
work
Fan damaged
Change it
The cable is loosen
Screw the cable tightly
3
Press the
gun switch,
no output
shielded
gas
No
output
gas
when
test gas
No gas in the gas cylinder Change it
Gas pipe leaks gas
Change it
Electromagnetic
valve
damaged
Change it
Output gas
when
test
gas
Control switch damaged
Repair the switch
Control circuit damaged Check the board
4
Wire-
feeder
doesn’t
work
Wire
reel
doesn’t
work
Motor damaged
Check and change it
Control circuit damaged Check the board
Wire
reel
works
The press wheel is loosen
or weld wire skids
Press it tightly again
The wheel doesn’t fit with
the diameter of weld wire
Change the wheel
Wire reel damaged
Change it
